From left to right, presenters Nick Carter, Howie Dorough, Brian Littrell, Kevin Richardson and AJ McLean of Backstreet Boys speak onstage during the 40th American Music Awards held at Nokia Theatre L.A. Live on Nov. 18, 2012, in Los Angeles.

From left to right presenters Charles Kelley, Hillary Scott and Dave Haywood of Lady Antebellum speak onstage during the 40th American Music Awards held at Nokia Theatre L.A. Live on Nov. 18, 2012, in Los Angeles.

Singer Justin Bieber accepts the award for Artist of the Year with his mom, Pattie Malette, onstage during the 40th American Music Awards held at Nokia Theatre L.A. Live on Nov. 18, 2012, in Los Angeles.